Lincoln Electric Grain Leather Sleeved Welding Jacket | Premium Flame Resistant Cotton Body | Black & Red | XXXL | K2987-XXXL WHY GRAIN LEATHER SLEEVES?  Grain leather is more flexible, lighter weight and softer than split leather while providing similar protection and durability. ERGONOMIC & DURABLE LEATHER SLEEVES  Made from high grade grain cowhide, the leather sleeves provide great protection from spatter, sparks and heat while allowing free flowing arm movement. Additionally, the leather sleeves can withstand heavy abrasion and friction which is a common failure point of cotton sleeved jackets. PREMIUM FLAME RETARDANT (FR) BODY  The jacket is made from ASTM D6413 compliant 9 oz. FR black / red cotton which prevents and extinguishes fire / flames. The fabric also has an anti-mildew and anti-static coating for added longevity and protection. SPATTER GUARD BUTTON LINER  To eliminate sparks and spatter from entering the jacket, the front button column has a unique three layer fabric and velcro design to improve protection and fit. SUPERIOR COMFORT  The soft, flexible grain leather sleeves improve arm mobility while the lightweight FR material is designed to be breathable allowing consistent airflow to keep you cool without sacrificing protection ADJUSTABLE FIT - To improve jacket fit, each side has an adjustable side straps to offer a comfortable fit for various body sizes. Additionally, the collar and cuffs can be adjusted to your desired fit. NECK PROTECTION  The flip-up collar can protect your neck from arc rays, spatter or sparks. PROTECTED STORAGE  Two large velcro flapped pockets offer easy to access protected storage USED BY PROFESSIONALS  This jacket model is used by professional fabricators on a daily basis.